“Systematic reviews of controlled clinical studies of treatments used by chiropractors have found no evidence that chiropractic manipulation is effective, with the possible exception of treatment for back pain.[8] A 2011 critical evaluation of 45 systematic reviews concluded that the data included in the study “fail[ed] to demonstrate convincingly that spinal manipulation is an effective intervention for any condition.”[10] Spinal manipulation may be cost-effective for sub-acute or chronic low back pain, but the results for acute low back pain were insufficient.[11] No compelling evidence exists to indicate that maintenance chiropractic care adequately prevents symptoms or diseases.[12]”
Actually, outside the US, the DO training is 7 years, same as a medical doctor. I chose a DO for my primary care doctor because they have papatory skills (i.e. they actually touch someone) that regular doctors refer out.
Really depends on the country, though. Many countries don’t have “DO” as a profession cause they only need one type of evidence based medical degree, so anyone who does osteopathy is basically equivalent to a chiropractor or other type of witch doctor.
I can definitely respect the perception that they interact with you more, and I’m glad you have a doctor that works well for you.